Question

—Do you know the boy       is sitting next tu Peter?
--Yes, he is Peter’s friend.They are celebrating his       birthday.

A．who;ninth

B．who; nineth

C．that;nineth

D．which;ninth

Answer 1

A

試題分析：定語從句用來充當句中定語的成分，被修飾的名詞叫先行詞，連接主從句的是關系詞。關系詞分：1關系代詞：who , whom , whose , which , that 。2關系副詞：where,when why 等。一般的who 用于指代人的先行詞，which 用來指代物的先行詞，that既可指認又可指物。關系代詞在從句中作主語、賓語。該句先行詞是人，故用who 引導，第九，去e加th,故選A